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You’ll be learning the latest versions of several key client-side, web-application development technologies in this book. This section provides a brief overview of each.
Chapters 2–3 introduce HTML (HyperText Markup Language)—a special type of computer language called a markup language designed to specify the content and structure of web pages (also called documents) in a portable manner. HTML5, now under development, is the emerging version of HTML. HTML enables you to create content that will render appropriately across the extraordinary range of devices connected to the Internet—including smartphones, tablet computers, notebook computers, desktop computers, special-purpose devices such as large-screen displays at concert arenas and sports stadiums, and more.